Policy Statement
About Us
Customer Focused, Service-Oriented, Analytical Testing Laboratory
Cornerstone Laboratories, LLC, is an independent analytical laboratory providing a wide range of testing services. Cornerstone was established in 2001 and is a customer focused, service-oriented, analytical, testing laboratory. Cornerstone provides environmental, nutritional and cosmetic testing, along with custom analysis, stability testing, test method development and validation services. Cornerstone utilizes state of the art instrumentation including GC, GC/MS, Headspace GC/MS, ICP/OES and HPLC.
Cornerstone adheres to industry approved test methodologies when available. Cornerstone also utilizes compendium and proprietary in-house test methodologies. Cornerstone strives to provide the highest level of quality control and assurance. Customer confidentiality is held in highest regard.
Analytical Testing
Services
CBD Testing
CBD Profiles, Terpenes, Heavy Metals and Pesticides
Cosmetic Testing
OTC’s, Creams, Lotions, Wipes, Hair and Skin Care Products
Water Testing
Drinking Water, Waste Water, Ground Water, Storm Water
Contaminants and Toxic Chemical Testing
Heavy Metals, PCB’s, PAH’s, NPDES Testing, Petroleum Products, Pesticides, Herbicides
Pet Food and Pet Products Testing
Feed, Topicals, Shampoos, Sprays, Dental Care, Toys and Bedding Products
Method Development and Validations
Test Method Development and Test Method Validations
Nutritional Testing
Vitamins, Omega Fatty Acids, Cholesterol, Sugars, Amino Acids, Proximate (Protein, Fat, Fiber, Minerals, Calories and Carbohydrates) along with a variety of supplements
USEPA RCRA and Hazardous Waste Characterization (TCLP) Testing
SW-846, 40CFR-Title 40
Underground Storage Tanks (UST) Testing
BTEX, MTBE, Naphthalene, Gas and Diesel Range Organics
Stability Testing
Shelf life studies, thermal stability, light stability
Raw Material Testing
USP/FCC Monograph Verification
Product Validations
Product testing parameter variance and stability determination
USP Monograph Verification Testing
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Services
Some of Our
Services
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Exterior Hand Wash
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Interior Detailing
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Exterior + Interior
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Nutritional Testing
Happy Cars, Happy Clients
Testimonials
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Dennis Burke
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Tyler Garza
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Carol Greene
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Rose Galler
24 Hour Receiving Room
Regular business hours are Monday through Friday, 9:00 a.m. to 3:00 p.m. After hours, please follow the instructions on the Receiving Room door to securely leave your sample(s). You will also be able to obtain additional sample containers and sample submission paperwork. Cornerstone will retrieve your samples the following business day upon opening.
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Shipping/Physical Address:
1775 Moriah Woods Blvd., Ste. 12
Memphis, TN 38117 - Include a signed Sample Submission Form or Chain of Custody
Receiving Samples
24/7/365
Submit Samples Today
A submission form is required to accompany any samples submitted to the laboratory.
Please choose the Chain of Custody form for environmental samples only.
All other samples, select the Sample Submission form.
Please choose the appropriate form below, complete all fields, sign, and include with your sample shipment.
Chain of Custody and Sample Submission forms ensure customer information, sample identification and requested analysis are accurate.